nice job dude-Mature Rbc utilizes Lactate dehydrogenase (A)
-The fate of glucose in Rbcs in both well fed and fasting states is anaerobic glycolysis (other than HMP shunt),
-Rbcs lack mitochondria hence pyruvate can't be utilized to proceed in
TCA cycle.(choice D)
-Rbcs lack enzymes for Glycogen synthesis which are present in liver and skeletal muscle only (choice C)
-Rbcs lack the enzyme glucose 6 phosphatase which is present only in liver (for Glycogenolysis)(choice B)
This is my understanding, tell me if I'm wrong.